PENTAIR plc — Director's Dealing 2010

Sep 22, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2010-09-20

Reporting Person: HOGAN RANDALL J (Director, Chairman, CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-09-20	Common Stock	M	30000	$11.375	Acquired	140274	Direct
2010-09-20	Common Stock	S	30000	$33.00	Disposed	110274	Direct
2010-09-21	Common Stock	M	13867	$11.375	Acquired	124141	Direct
2010-09-21	Common Stock	M	4659	$16.2735	Acquired	128800	Direct
2010-09-21	Common Stock	S	18526	$33.13	Disposed	110274	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-09-20	Employee Stock Option (right to buy)	$11.375	M	30000	Disposed	2011-01-02	Common Stock (30000)	Direct
2010-09-21	Employee Stock Option (right to buy)	$11.375	M	13867	Disposed	2011-01-02	Common Stock (13867)	Direct
2010-09-21	Employee Stock Option (right to buy)	$16.2735	M	4659	Disposed	2011-01-02	Common Stock (4659)	Direct

Footnotes

F1: The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2009.

F2: The reported price for this transaction is the weighted average price, and the price range is $33.00 to $33.06.

F3: Upon request by the Commission, the company or a shareholder, the reporting person will provide full details of the information reported regarding the number of shares sold at each separate price.

F4: The reported price for this transaction is the weighted average price, and the price range is $33.01 to $33.30.